Using sketches to make illustrations is a great method to use, especially for cartoon characters, comic book characters, and logo design. Tracing over your sketches helps you to get more precise illustrations and can also help you to create more detailed illustrations. For those that don’t use tablets creating illustrations from scratch can be more difficult, but when you use a sketch it can be much easier to get the right details and to be more accurate because your are following the lines that are drawn out on the sketch. Below are 15 tutorials that involve creating illustrations based on sketches in illustrator and photoshop, I hope you will find these useful!

Nice tutorials. I will try next day to do a sketch and do like you say in this tut.
I worked all of my time with PS but , i think, if i follow all the steps that you write here I CAN DO THIS.
Thanks again!